US PATENT SUBCLASS 76 / 24.1
.~ Process

Current as of: June, 1999
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76 /   HD   METAL TOOLS AND IMPLEMENTS, MAKING

12  DF  FILE CUTTING {9}
24.1.~ Process {1}
24.5  DF  .~.~> Chemically sharpening

DEFINITION

Classification: 76/24.1

Process:

(under subclass 12) Method of forming cutting ribs or teeth on the surface of a file or rasp.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

194+, for an electrolytic apparatus used to sharpen or resharpen a file or rasp.

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

664, for electrolytic sharpening or resharpening of a file or

rasp.